Reuters: The U.S. Environmental Protection Agency found that climate-warming greenhouse gases, including carbon dioxide, pose a danger to human health and welfare, a White House website showed on Monday. EPA’s proposed “endangerment finding,” sent to the Obama administration on Friday, could pave the way for U.S. limits on emissions that spur climate change. The substance of the proposal was not immediately made public, but the White House Office of Management and Budget showed EPA sent …